Fingerprint Identification Assembly, Fingerprint Identification Method, and Electronic Device

Abstract

A fingerprint identification assembly, a fingerprint identification method, and a electronic device are disclosed. The fingerprint identification assembly is applied in an electronic device having a charger. The fingerprint identification assembly includes a fingerprint chip, a cover, and a base. The fingerprint chip is configured to emit a charging fingerprint collection signal. The cover is disposed at one side of the fingerprint chip. The base is disposed at the other side of the fingerprint chip away from the cover and is configured to support the fingerprint chip and the cover. The charging fingerprint collection signal is configured to collect data of a user's fingerprint image, a frequency of the charging fingerprint collection signal is greater than a preset frequency, and the preset frequency is a switching frequency of the charger.

What is claimed is: 
     
         1 . A fingerprint identification assembly, applied in an electronic device having a charger, the fingerprint identification assembly comprising:
 a fingerprint chip, configured to emit a charging fingerprint collection signal;   a cover disposed at one side of the fingerprint chip; and   a base disposed at the other side of the fingerprint chip away from the cover, configured to support the fingerprint chip and the cover;   wherein the charging fingerprint collection signal is configured to collect data of a user's fingerprint image, a frequency of the charging fingerprint collection signal is greater than a preset frequency, and the preset frequency is a switching frequency of the charger.   
     
     
         2 . The fingerprint identification assembly of  claim 1 , further comprising:
 a metal ring disposed around the cover.   
     
     
         3 . The fingerprint identification assembly of  claim 2 , wherein the metal ring has a shape of one or more of circle, ellipse, rectangle, and polygon. 
     
     
         4 . The fingerprint identification assembly of  claim 2 , wherein the metal ring is made from one of stainless steel, gold, silver, and copper. 
     
     
         5 . The fingerprint identification assembly of  claim 2 , wherein the metal ring is disposed around and electronically connected to the cover. 
     
     
         6 . The fingerprint identification assembly of  claim 1 , wherein an amplitude of the charging fingerprint collection signal is greater than a preset amplitude, and the preset amplitude is a magnitude of a voltage signal output by the charger. 
     
     
         7 . A method for fingerprint identification, applied to an electronic device comprising a fingerprint identification assembly and a charger, the method comprising:
 receiving a fingerprint collection instruction; and   emitting a charging fingerprint collection signal, wherein the charging fingerprint collection signal is configured to collect data of a user's fingerprint image, a frequency of the charging fingerprint collection signal is greater than a preset frequency, and the preset frequency is a switching frequency of the charger.   
     
     
         8 . The method of  claim 7 , further comprising:
 before emitting the charging fingerprint collection signal:   detecting whether the electronic device is in a charging state; and   perform the emitting the charging fingerprint collection signal when the electronic device is in the charging state.   
     
     
         9 . The method of  claim 8 , further comprising:
 after detecting whether the electronic device is in the charging state:   determining whether a difference between a frequency of a display signal of the electronic device and a frequency of a normal fingerprint collection signal is greater than a preset threshold when the electronic device is not in the charging state; and   perform the emitting the charging fingerprint collection signal when the difference is greater than the preset threshold.   
     
     
         10 . The method of  claim 9 , further comprising:
 after determining whether the difference between the frequency of the display signal of the electronic device and the frequency of the normal fingerprint collection signal is greater than the preset threshold:   emitting a display fingerprint collection signal when the difference between the frequency of the display signal of the electronic device and the frequency of the normal fingerprint collection signal is less than or equal to the preset threshold, wherein the difference between a frequency of the display fingerprint collection signal and the normal fingerprint collection signal is greater than the preset threshold.   
     
     
         11 . The method of  claim 10 , wherein an amplitude of the display fingerprint collection signal is greater than an amplitude of the display signal of the electronic device. 
     
     
         12 . The method of  claim 7 , wherein an amplitude of the charging fingerprint collection signal is greater than a preset amplitude, and the preset amplitude is a magnitude of a voltage signal output by the charger. 
     
     
         13 . The method of  claim 7 , wherein the receiving the fingerprint collection instruction is implemented by user voice inputting or sensing a fingerprint contact on the fingerprint identification assembly. 
     
     
         14 . An electronic device, comprising:
 a charger;   a fingerprint identification assembly comprising:
 a fingerprint chip, configured to emit a charging fingerprint collection signal; 
 a cover disposed at one side of the fingerprint chip; and 
 a base disposed at the other side of the fingerprint chip away from the cover, configured to support the fingerprint chip and the cover; 
 wherein the charging fingerprint collection signal is configured to collect data of a user's fingerprint image, a frequency of the charging fingerprint collection signal is greater than a preset frequency, and the preset frequency is a switching frequency of the charger. 
   
     
     
         15 . The electronic device of  claim 14 , wherein the fingerprint identification assembly further comprises:
 a metal ring disposed around the cover.   
     
     
         16 . The electronic device of  claim 15 , wherein the metal ring has a shape of one or more of circle, ellipse, rectangle, and polygon. 
     
     
         17 . The electronic device of  claim 15 , wherein the metal ring is made from one of stainless steel, gold, silver, and copper. 
     
     
         18 . The electronic device of  claim 15 , wherein the metal ring disposed around and electronically connected to the cover. 
     
     
         19 . The electronic device of  claim 14 , wherein an amplitude of the charging fingerprint collection signal is greater than a preset amplitude, and the preset amplitude is a magnitude of a voltage signal output by the charger. 
     
     
         20 . The electronic device of  claim 14 , further comprising:
 a processor; and   a non-transitory memory coupled to the processor, configured for storing a computer program, wherein the computer program causes the processor to receive a fingerprint collection instruction and control the fingerprint chip to emit the charging fingerprint collection signal.